Synonyms and related words :
acute, argute, blinding, creaky, crude, ear-piercing, flaring, flashy, flaunting, garish, gaudy, glaring, howling, keen, keening, loud, lurid, overbright, penetrating, piercing, piping, raw, reedy, screaky, screaming, screeching, screechy, sharp, shrieky, shrill, squeaking, squeaky, thin, ululant, wailing, whining, whistling